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O2 Annual data connection 1.2TB - SIM Card

Reviews O2 Annual data connection 1.2TB

Interested in reviews of O2 Annual data connection 1.2TB? It got 4.6 out of 5 stars from our customers. Find specific customer reviews of O2 Annual data connection 1.2TB below. We will appreciate if you also share your experiences with O2 Annual data connection 1.2TB after purchasing.
2,999,-
In stock > 5 pcs
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User Reviews

Pavel, Praha 9flag
Rated 14/02/2026, variant O2 Annual data connection 1.2TB
Verified purchase - review from a price comparison website
sufficient data
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Martin, Pardubiceflag
Rated 25/05/2026, variant O2 Annual data connection 15GB
Verified purchase - review from a price comparison website
While it is the cheapest card with data for a year, it is not worth it if you require eSim. You have to physically go to a branch to activate it, where they can also tell you: "We're out of QR code papers, come back in a few days when they arrive. And if they already have the QR papers, they ask for 99 CZK from the transfer to eSim at the branch (you can't do it via My O2 or the info line). Crazy O2 in prehistoric times. Otherwise, of course, 50GB is much better value for money, and even the 99 CZK for the transfer to eSim at the branch is better "dissolved in the price".
The cheapest solution
Disadvantageous in terms of price/volume
Flying around O2 branches for eSim
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Companyflag
Rated 23/05/2026, variant O2 Annual data connection 15GB
Verified purchase
price per year
Unfortunately the Goodwe inverter doesn't work with it, O2 has tighter network security and firewalls on its mobile tariffs that evaluate outgoing inverter communication as a threat and block it.
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Customer, Prahaflag
Rated 23/05/2026, variant O2 Annual data connection 50GB
Verified purchase - review from a price comparison website
easy to use
unrealistic indication of data usage
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Josef, Morkoviceflag
Rated 16/05/2026, variant O2 Annual data connection 50GB
Verified purchase - review from a price comparison website
works as it should
It doesn't have a PIN on you don't have to bother with turning it off in the phone and you can put it straight into the camera
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Michal, Brno 24flag
Rated 19/04/2026, variant O2 Annual data connection 50GB
Verified purchase
I have bought 3 times already and will buy again. Probably the cheapest mobile data solution we can get. However, you have to go to the shop and pay 100 CZK to exchange it for an esim. There is no need for authentication, credit charging, etc. as mentioned here (that's only if someone wants to use an older card without credit, not a newly purchased one).
Cheaper than from O2 directly
You can trade it for an esim for a hundred
with little data usage, it really lasts a year
I got constant unsolicited texts from my first sim. The number belonged to a Mr. Hejduk who tried to take all kinds of loans from different companies every week. Although the sim is data-only, sms and calls can't be turned off, and O2 apparently recycles numbers
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Miroslav, Blatnáflag
Rated 24/03/2026, variant O2 Annual data connection 15GB
Verified purchase
The SIM card is hopefully fine, but after registering it to my O2 I found that it has been activated for 14 days through a foreign device. What Alza did with it before is a mystery to me. I won't solve it, but I don't have a pleasant feeling about it, next time I'd rather go straight through o2
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Lubor, Ostrov nad Ohříflag
Rated 06/03/2026, variant O2 Annual data connection 15GB
Verified purchase - review from a price comparison website
SIM card
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Radek, Jindřichův Hradecflag
Rated 27/12/2025, variant O2 Annual data connection 1TB
Verified purchase
SIM card purchased in November 2025 and according to O2 it is already active from May 2025, so I don't understand it now that I have unpacked it. Somewhere 7 months are missing.
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Bohumil, Třebíčflag
Rated 24/12/2025, variant O2 Annual data connection 15GB
Verified purchase - review from a price comparison website
Special price.
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